74VHC245

更新时间： 2024-11-05 22:56:23

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		总线收发器
页数	文件大小	规格书
8页	69K
描述
OCTAL BUS TRANSCEIVER 3-STATE

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中文翻译

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数据手册

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74VHC245 数据手册

74VHC245

OCTAL BUS

TRANSCEIVER (3-STATE)

PRELIMINARY DATA

■

HIGH SPEED:t_PD=4.0ns (TYP.) atV_CC= 5V

LOW POWER DISSIPATION:

I_CC=4 µA (MAX.) at T_A=25 ^oC

HIGH NOISEIMMUNITY:

V_NIH= V_NIL=28% V_CC(MIN.)

POWERDOWN PROTECTIONON CONTROL

INPUTS

SYMMETRICAL OUTPUT IMPEDANCE:

|I_OH| = I_OL= 8 mA (MIN)

BALANCEDPROPAGATIONDELAYS:

t_PLHt_PHL

■

(Micro Package)

(TSSOPPackage)

ORDER CODES :

74VHC245M

74VHC245T

used to disable the device so that the busses are

effectively isolated.

OPERATING VOLTAGERANGE:

V_CC(OPR)= 2V to 5.5V

PIN AND FUNCTION COMPATIBLEWITH

74 SERIES245

All inputs and outputs are equipped with

protection circuits against static discharge, giving

them 2kV ESD immunity and transient excess

voltage.

IT IS PROHIBITED TO APPLY A SIGNAL TO A

TERMINAL WHEN IT IS IN OUTPUT MODE

AND WHEN A BUS TERMINAL IS FLOATING

(HIGH IMPEDANCE STATE) IT IS REQUESTED

TO FIX THE INPUT LEVEL BY MEANS OF

EXTERNAL PULL DOWN OR PULL UP

RESISTOR.

■

IMPROVED LATCH-UP IMMUNITY

LOWNOISEV_OLP= 0.9V(Max.)

DESCRIPTION

The 74VHC245 is an advanced high-speed

CMOS OCTAL BUS TRANSCEIVER (3-STATE)

fabricated with sub-micron silicon gate and

double-layermetal wiring C²MOS technology.

This IC is intended for two-way asynchronous

communication between data busses; the

direction of data trasmission is determined by the

level of the DIR input. The enable input G can be

PIN CONNECTION AND IEC LOGIC SYMBOLS

1/8

June 1999

12 3 4 5 6 7 8

中文翻译

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与74VHC245相关器件

型号	品牌	获取价格	描述	数据表
74VHC245_04	STMICROELECTRONICS	获取价格	OCTAL BUS TRANSCEIVER (3-STATE)
74VHC245BQ	NEXPERIA	获取价格	Octal bus transceiver; 3-stateProduction
74VHC245D	NEXPERIA	获取价格	Octal bus transceiver; 3-stateProduction
74VHC245FT	TOSHIBA	获取价格	Octal Transceiver, TSSOP20B
74VHC245M	FAIRCHILD	获取价格	Octal Bidirectional Transceiver with 3-STATE Outputs
74VHC245M	ONSEMI	获取价格	带 3 态输出的八路双向收发器
74VHC245M	STMICROELECTRONICS	获取价格	OCTAL BUS TRANSCEIVER 3-STATE
74VHC245MSC	ETC	获取价格	Single 8-bit Bus Transceiver
74VHC245MSCX	FAIRCHILD	获取价格	Bus Transceiver, AHC/VHC Series, 1-Func, 8-Bit, True Output, CMOS, PDSO20
74VHC245MTC	FAIRCHILD	获取价格	Octal Bidirectional Transceiver with 3-STATE Outputs